WASHINGTON — Sen. Lindsey Graham's personal investment portfolio is small and simple compared to the portfolios of other senators and candidates for president.

The South Carolina Republican's cash and mutual funds were worth between $216,000 and $740,000 in 2014, according to his latest financial report. He also reported mortgage debt of between $115,000 and $300,000.

Federal lawmakers and presidential candidates are required to report their personal finances each year. The reports list assets and liabilities only in broad ranges.

Graham's assets set him apart from the multi-millionaires in the 2016 presidential field and in the Senate, where median net worth was $2.8 million in 2013, according to the Center for Responsive Politics.

Among presidential contenders, former secretary of State Hillary Clinton, a Democrat, had an estimated net worth of more than $15 million in 2012. GOP candidate Carly Fiorina, former CEO of Hewlett-Packard, is worth about $59 million. Among other GOP contenders, Ben Carson also is a multi-millionaire and Donald Trump is a billionaire.

As part of his presidential campaign, Graham has emphasized his modest upbringing in Central, S.C., and his one-time reliance on government assistance.

"I know from personal experience how important those programs are to the lives of millions of Americans," he said in announcing his presidential bid on June 1. "I lost my parents when I was a young man and my sister was in middle school. We depended on Social Security benefits to survive."

Graham, a lawyer, has been on the congressional payroll since he began serving, first as a House member, in 1995. He now earns the standard Senate salary of $174,000.

The Center for Responsive Politics has ranked Graham among the least wealthy members of the Senate for 10 straight years.

In 2013, he ranked 68th out of 100, with an estimated net worth of $1.02 million.

That ranking will likely drop based on his 2014 report, filed in May. His new estimated net worth is closer to $270,000 after he removed his Capitol Hill home from his list of assets this year. It was removed because Graham stopped renting out part of the home, so it no longer generates income, according to his office.

In 2013, he reported the home was valued between $500,000 and $1 million, with rental income of less than $1,000.

District of Columbia property records say the 2015 value of the home is about $581,000.

Congressional rules do not require members to disclose the value of their personal homes. Oconee County tax records list the value of Graham's Seneca, S.C., home at $213,000. Graham's latest report said he owes a total $115,000-$300,000 on both homes.

When Graham's real estate holdings are added to estimates of his cash and other investments, his total net worth likely reaches or exceeds $1 million.

Over the years, his portfolio has shifted from direct ownership of stocks to mutual funds. In 2014, he had investments in 13 mutual funds, most valued between $15,000 and $50,000.

He has checking, savings and money market accounts with between $46,000 and $165,000 in deposits.

The Center for Responsive Politics, which uses the congressional forms to calculate averages and estimate the net worth of members of Congress, reports a jump in Graham's net worth from 2005 to 2006.

Graham ranked 94th in the Senate in 2005, with an estimated net worth of $189,509. Records show that his Washington home at that time was worth between $250,000 and $500,000, with a mortgage on it in the same range.

In 2006, when the home's value was raised to between $500,000 and $1 million, the center estimated his net worth at $846,509. The mortgage on it also dropped to the $100,000-$250,000 range.